'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')
const CompressionWebpackPlugin = require('compression-webpack-plugin');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
function resolve(dir) {
  return path.join(__dirname, dir)
}
const name = defaultSettings.title || '' // page title
// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  // publicPath: '/client',
  outputDir: 'dist',
  assetsDir: 'static',
  lintOnSave: false,
  productionSourceMap: false,
  devServer: {
    port: port,
    open: false,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      'api': {
        target: 'https://api.quannengshi.top/',//http://192.168.20.107:8114/   http://192.168.20.113/
        //https://api.quannengshi.top/,
        // http://api-bbit.quannengshi.top/
        changeOrigin: true,
        ws: true,
        pathRewrite: {
          '^/api': ''
        }
      },
    }
    // before: require('./mock/mock-server.js')
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        '@': resolve('src')
      }
    },
    optimization: {
      // minimizer: [
      //   new UglifyJsPlugin({
      //     uglifyOptions: {
      //       warnings: false,
      //       compress: {
      //         drop_console: process.env.NODE_ENV === 'production',  //注释console
      //         drop_debugger: process.env.NODE_ENV === 'production', //注释debugger
      //         pure_funcs: ['console.log', 'console.debug'],//process.env.NODE_ENV === 'production' ? [] : ['console.log', 'console.debug']
      //       }
      //     }
      //   })
      // ],
      splitChunks: {
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial'
          },
          elementUI: {
            name: 'chunk-elementUI',
            priority: 20,
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/
          }
        }
      }
    }
  },
  chainWebpack(config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])

    // when there are many pages, it will cause too many meaningless requests  
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    config.when(process.env.NODE_ENV !== 'development', config => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [{
          // `runtime` must same as runtimeChunk name. default is `runtime`
          inline: /runtime\..*\.js$/
        }])
        .end()
      config
        .optimization.splitChunks({
          chunks: 'all',
          cacheGroups: {
            libs: {
              name: 'chunk-libs',
              test: /[\\/]node_modules[\\/]/,
              priority: 10,
              chunks: 'initial' // only package third parties that are initially dependent
            },
            elementUI: {
              name: 'chunk-elementUI', // split elementUI into a single package
              priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
              test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
            },
            commons: {
              name: 'chunk-commons',
              test: resolve('src/components'), // can customize your rules
              minChunks: 3, //  minimum common number
              priority: 5,
              reuseExistingChunk: true
            }
          }
        })
      // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
      config.optimization.runtimeChunk('single')


    })

    config.plugin("compression").use(CompressionWebpackPlugin, [
      {
        cache: false, // 取消缓存
        filename: "[path][base].gz[query]", // 输出文件名
        algorithm: "gzip",  // 压缩算法
        // test: /\.(js|css)$/, // 匹配需要压缩的文件类型，使用该种方式js文件夹下js不会被压缩
        test: /\.(js|css)(\?.*)?$/g,
        threshold: 10240,  // 只处理大于 10KB 的文件
        minRatio: 0.8, // 只有压缩率大于0.8的文件才会被处理
        deleteOriginalAssets: false, // 是否删除原始文件
      },
    ]);
  },

  css: {
    extract: false
  }
}
